What about space implies fast? Sitting equipment at L2 is all the rage these days and SpaceX has launched there before.
Not that I think this particular case wouldn't work in LEO, just for things that wouldn't there are much better options - we just have historically had trouble getting there affordably/reliably enough to make it worth while.
Oh, sorry, I though you were going to argue that we don't have to put science on hold just to let all the world stream gagnam style via Elon owned infrastructure.
In any case, a single SpaceX heavy costs about the same as 9 2.5 m telescopes, so good luck making the argument that science won't suffer.
If you put a science instrument in space, you do it because it's the only option, not because Elon says so.
Do you actually want to talk about the real world impacts of this or have you already made up your mind? What your saying is going against what the captions on the image from the IAU site point to and seems to have more to do with your personal opinion of Elon than the actual merits of space based astronomy or the impacts of satellites on ground based astronomy.
Not that I think this particular case wouldn't work in LEO, just for things that wouldn't there are much better options - we just have historically had trouble getting there affordably/reliably enough to make it worth while.